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Question #481Amateur Radio Regulations and Licensing

The frequencies those are designated with 'H' can be used

  1. during the day time
  2. in during the night time ✓ Correct answer
  3. intermittently
  4. 24 Hrs of a day 325.What will be the speed in wpm. when at message being transmitted contains 60 characters in a minute

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Question #482Amateur Radio Regulations and Licensing

R3E designates:

  1. Amplitude modulation :Telephony, voice
  2. Telephony, (voice) Frequency modulation
  3. Telephony, (voice) Single sideband , suppressed carrier ,
  4. Telephony (voice), single sideband, reduced carrier ✓ Correct answer
Explanation: R3E denotes single-sideband telephony with reduced carrier. The option text was cleaned of OCR spillover.

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Question #483Amateur Radio Regulations and Licensing

Transmission of a message shall be terminated by the signal in radiotelegraphy

  1. AR ✓ Correct answer
  2. BK
  3. VV
  4. CQ

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Question #484Amateur Radio Regulations and Licensing

The use of class B emissions (damped waves) is

  1. Allowed
  2. forbidden ✓ Correct answer
  3. At night time only
  4. At day time only 330.When are amateur stations permitted to handle third party messages?

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Question #485Amateur Radio Regulations and Licensing

The Corresponding Metric Subdivision for 3 to 30 MHz band is:

  1. Kilometric waves
  2. Hectometric waves
  3. Decametric waves ✓ Correct answer
  4. Metric waves e) Decimetric waves

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Question #486Operating Procedures, Morse Code and Phonetics

The phonetic code for 6

  1. Soxisix ✓ Correct answer
  2. Secasix
  3. Hexasix
  4. Setasix 334.When may you send indecent or profane words from your amateur station?

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Question #487Amateur Radio Regulations and Licensing

If you transmit from another amateur's station, who is responsible for its proper operation?

  1. You, the operator
  2. Both of you ✓ Correct answer
  3. The station owner, unless the station records show that you were the operator at the time
  4. The station owner
Explanation: Both the control operator and the station licensee are responsible for proper operation of the station.

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Question #488Amateur Radio Regulations and Licensing

India is location in ITU Region:

  1. region 1
  2. region 2
  3. region 3 ✓ Correct answer
  4. region 4 342.What is the Standard International Phonetic for the letter G?

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Question #489Operating Procedures, Morse Code and Phonetics

COIL, using the international phonetic alphabet, would be announced as:

  1. Charlie, Ocean, Italy, Lima.
  2. Charlie, Oscar, India, Lima. ✓ Correct answer
  3. Colin, Oscar, Indonesia, London.
  4. Colin, Oscar, India, London. 354.QRT is defined as:

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Question #490Amateur Radio Regulations and Licensing

The maximum DC input to the final stage of an amateur HF transmitter, when the operator is the holder of General grade license is:

  1. 250 watts
  2. 400 watts ✓ Correct answer
  3. 500 watts
  4. 1500 watts

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Question #491Operating Procedures, Morse Code and Phonetics

The correct order for call signs in a call sign exchange at the start and end of a transmission is:

  1. the other call sign followed by your own call sign ✓ Correct answer
  2. your call sign followed by the other call sign
  3. your own call sign, repeated twice
  4. the other call sign, repeated twice

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Question #492Radio Theory and Communication Principles

The UHF range is

  1. 30 to 300 KHz
  2. 300 to 3000 KHz
  3. 3 to 30 GHz
  4. 300 to 3000 MHz ✓ Correct answer
Explanation: UHF is 300–3000 MHz.

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Question #493Amateur Radio Regulations and Licensing

Grade II amateurs can communicate on 7 MHz in

  1. A1 ✓ Correct answer
  2. A3
  3. F3
  4. A3A
Explanation: A1 is the Morse telegraphy emission; this is the intended Grade II 7 MHz answer in the legacy syllabus.

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Question #494Amateur Radio Regulations and Licensing

A3E emission is

  1. DSB ✓ Correct answer
  2. SSB
  3. CW
  4. FSK
Explanation: A3E is double-sideband, full-carrier amplitude-modulated telephony (DSB).

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Question #495Amateur Radio Regulations and Licensing

Amateurs are required to preserve their log for a period of ---- from the date of last entry

  1. 1 year ✓ Correct answer
  2. 2 year
  3. 6 months
  4. permanently
Explanation: The 2024 rules require preservation for one year from the last log entry.

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Question #496Amateur Radio Regulations and Licensing

The callsign VU2VX is authorized to

  1. Gr I amateur ✓ Correct answer
  2. Gr II amateur
  3. Advanced amateur
  4. not authorized
Explanation: The VU2 prefix in this legacy call-sign classification corresponds to the Grade I category used in the question bank. Verify the historical licence mapping before using this item.

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Question #497Amateur Radio Regulations and Licensing

Test signals are not to be transmitted for more than

  1. 10 minutes
  2. 5 minutes
  3. 1 minute
  4. 30 seconds ✓ Correct answer
Explanation: The current 2024 Indian Amateur Services Rules limit test signals to 30 seconds; the option has been corrected to match the current rule.

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Question #498Radio Theory and Communication Principles

Mutual induction is dependent on

  1. winding ratios
  2. output polarities ✓ Correct answer
  3. DC voltage levels
  4. current changes

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Question #499Radio Theory and Communication Principles

What device increases the low-power output from a hand-held transceiver?

  1. A voltage divider
  2. An RF power amplifier ✓ Correct answer
  3. An impedance network
  4. A voltage regulator
Explanation: An RF power amplifier increases the low-power RF output of a hand-held transceiver.

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Question #500Basic Electricity and Electronics

What is the name of a device that combines several semiconductors and other components into one package?

  1. Transducer
  2. Multi-pole relay
  3. Integrated circuit ✓ Correct answer
  4. Transformer

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